I use Python3 as my primary language while programming !
I have recently started using CodeForces ( I used to only use CodeChef untill now and never faced a problem !) and today, in the 3rd contest that I was participating in on CodeForces I faced severe problems because of using Python3 !!!
I faced this problem in the Problem B of Contest #1027(Educational Codeforces Round 49 )
I coded a perfectly correct Solution in Python3 but got a TLE in 3rd test case !
Then I coded the same solution in C++, but I'm not that good with C++ so I actually got a WA in test 7 which I figured was due to my data type, I tried around with that, read online and was finally able to get it working by changing the data type and some minor adjustments to my initial code ! All this took me 1 hour ! Now wasting 1 hour in a live contest just because CodeForces doesn't have a different Time Limit for different languages is insane !!!!!!!!
I found a blog(https://mirror.codeforces.com/blog/entry/45228) pointing out the same issue which was posted 2 years back ! But it seems that still nothing has been done !
I'm attaching as a proof a screenshot showing my submissions, anyone can go ahead and see my codes and realise that I wasted my 1 hour because I wasn't as well versed with C++ as with Python ! And a having different a Time Limit for Python would have saved my time because the logic and the solution remains exactly the same !!!!!!!